This is likely to actually turn out to be true. This could be a legitimate spoiler, so don’t say I didn’t warn you.
Jon Snow Is the True Heir to the Throne
George R.R. Martin has come out and said that one of the fan theories has correctly guessed the ending, and this one spells it out:
Daenerys Targaryen will show up with her dragons, Jon Snow will be revealed to also be a Targaryen, and the two of them will end the war once and for all by getting married and taking the throne as king and queen.
Jon Snow on The Wall = Ice
Daenerys Targaryen and her dragons = Fire
Thus, “A Song of Ice and Fire.”
Read all the juicy details: 6 Insane (but Convincing) ‘Game of Thrones’ Fan Theories [Cracked.com]
You could also watch the video below:
R+L=J: who are Jon Snow’s parents? [YouTube]